1. Gwen Stefani shared this awesome prom photo of her wearing a dress made by her mom and inspired by Grace Kelly's dress in Rear Window.
2. Super cute: A pre-BlackBerry throwing Naomi Campbell.
3. Speaking of cute, check out Ricky Martin as a little kid.
4. This is EPIC: When Buffy met Brenda Walsh!
.@DohertyShannen How is this for a #tbt
5. Drake hanging with Trey Songz back in the day.
6. Sally Jessy Raphael remembered the day that Richard Simmons may have gotten her pregnant.
#tbt Richard Simmons (@TheWeightSaint) & me in 1999. Look @ this photo! I think one of us left pregnant that day! Lol
7. Lucky Lance Bass, he got to rest his head on Beyoncé's pillows.
8. Speaking of Bey, check out this sweet photo with her fellow DC-3 members, Michelle Williams and Kelly Rowland.
9. Kate Upton (on the right) had great hair even as kid. And look at how she styled it!
10. Sir Paul McCartney shared the original iconic pic from the cover of his album Ram.
Paul with 'RAM' #ThrowbackThursday #TBT
11. Anna Paquin proved to us that she once could do the splits.
after hours filming @trickrtreat w @Mike_Dougherty Splits? can't explain... #throwbackthursday
12. X-Men: Days of Future Past's star Evan Peters liked to talk on the phone while going to the bathroom.
Revisiting the past before fighting for the future. #XMen #TBT #toilettoys